Re: [ros-kernel] a serious issue in kernel code

[David W. <we...@cw...>]

On Wed, Jul 10, 2002 at 08:50:35PM +0200, KJK::Hyperion wrote:
> I'll jump on the bandwagon... they should copy and check parameters, and 
> check permissions, only if ExGetPreviousMode == KernelMode. I read this on 
> NTDEV months ago, and I waited for the occasion to say it :-)
> 
MmCopyToCaller/MmCopyFromCaller should already do the right thing for the
value of previous mode; they also encapsulate the checks that the caller
can legally access the address in question.